Having an incompetent lawyer may be grounds for a retrial, but the lawyer in question probably doesn't know that.
An incompetent manager.
An incompetent heart valve.
A defendant incompetent to stand trial.
An example of incompetent is a person getting behind the wheel of a manual transmission car, who doesn't know how to drive with a stick shift.
Other Word Forms
Origin of incompetent
- From French incompétent